I don't want to start a new thread, so I will continue in this one.
Right now I want to do something like this.
I have some code in DAQ:
Java-like based calculator (module) -> Controller -> Test (controller) -> Result (Parameters).

In Test (controller) I have some code, and I want to connect with (DAQ):
ModBUS -> Test -> List

Well, I was reading this F manual very acutely...
I was struggling with this whole day. It turned out, that if I'm connecting with ModBus protocol and I have syntax error, then
controller (Name:Test as mentioned in post above) in Java-like based calculator can hang. Therefore, there is no possibility to put new changes, because it will simply not compile (without symptoms). That was main reason for creating this post and my strange syntax attempts.
Solution - restart OpenSCADA.
(I am running most recent 0.9+r2460)

Anyway, Thank You for help, because You said, that I should get attribute's object (so EVAL that I was getting was wrong).